Closure



FIG. 1 is a front perspective view of a closure;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines showing environment are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a closure, as shown and described. 